— Self-employed Canadians earned less per worker than other Canadians, bringing down national productivity by 2.9 per cent in the 1990s, Statistics Canada reports. The effect of lower incomes was more significant because self-employment accounted for the majority of job growth from 1988 to 1998. In the United States on the other hand, self-employed Americans out-earned their fellow citizens, bringing up national productivity by 4.1 per cent. When Canadian and U.S. self-employed workers are removed from the equation, labour productivity is roughly equal, StatsCan states.